Door.



J. H'. VAN ZANDT.

DOOR. APPLICATION FILED JAN.9, 1909.

I 953,988. Patented Apr. 5, 1910.

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J. H. VAN ZAND'I'.

' DOOR. APPLICATION FILED JAN. 9, 1909.

\ Patented Apr. 5, 1910.

2 SHEETS-SHEET 2.

@Minuut JOI-IN H. VAN ZANDT, OF FORT WORTH, TEXAS.

DOOR.

Specification of Letters Patent.

Patented Apr. 5, 1910.

Application filed January 9, 1909. Serial No. 471,432.

To all whom 'it may concern:

Be it known that I, JOHN H. VAN ZANDT, a citizen of the United States,residing at Fort Worth, Texas, have invented certain new and usefulImprovements in Doors, of which thefollowing is a specification.

This invention relates to doors and more particularly to doors whichrotate on a vertical axis, and the object is to provide double doors fora bath-room by which access may be had to the bath room from either oneof two rooms.

As a matter of economy it is desirable that one bath room may serve twoadjoining rooms.

The object of this invention is to provide doors which will permitentrance from either one of two adjoining rooms to the bath room butwhich will not permit entrance from one of the adjoining rooms to theother and further to provide means which will prevent a party in one ofthe adjacent rooms from entering the bath room while the part-y from theother adjoining room is already in the bath room.

Other objects and advantages will be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

Reference is had to the accompanying drawings which form a part of thisapplication and specification.

Figure 1 is a plan view of the door with sections of the wall structureof the adjoining rooms and of the bath room. Fig. 2 is a verticalsection of the doors and of the cooperating sealing walls or guards.Fig. 3 is a horizontal section of one of the unlocking devices inperspective. Fig. 4 is an enlarged horizontal section through thelocking devices carried by the doors, showing the construction of thedoors about the locks. Fig. 5 is a port-ion of one of the segments, theview being an exterior of that part of the segment which carries areleasing device 25. Fig. 6 is a broken vertical section of one of thelocks which are carried by the guard wall 11, and showing a section ofone of the segments taken on the line .frof Fig. 5. Fig. 7 is a verticalsection of a lock which is carried by the guard wall 12 and showing thelocking bolts engaging the beveled groove in the segment 2. Fig. S is avertical section of the lock which is carried by the guard wall 13, andalso showing a section of the segment 3 taken along the line w of Fig.5, thesegment 3 being rotated far enough to be adjacent to the lock 27.Fig. 9 is a vertical section of an unlocking device 25 which is carriedby the segment 3.

Similar characters of reference are used to indicate the same partsthroughout the several views.

This invention includes an oscillating or rotating partition 1 whichcarries segments of cylinders 2 and 3 and this partition 1 is mounted ona vertical shaft 4. The shaft 4 is mounted in a frame 5 which has upperand lower arms 6 and 7, the shaft 4 being j ournaled in the upper andlower arms with ball bearings 8, the ball bearings 8 at the upper end ofthe shaft being included between the arm 6 and a nut 9 which is screwedon the upper end of the shaft 4. A jam nut 10 holds the nut 9 in place.Normally the partition 1 closes the passage from one guestl chamber tothe other.

In operation the wall sections 11, 12, and 13, which are concentric withthe segments 2 and 3, coperate with the segments 2 and 3 and thepartition 1 to close the passage from one guest chamber to the other.Normally a guestin either chamber can enter the door passage. A guestwalks into the door passage and unlocks the segment 3. He can then turnthe partition so that the segnient 3 will close the passage behind him.Segment 2 will pass around far enough to open the passage into the bathroom. If the guest comes from chamber A, the segment 3 will be locked tothe guard 12 and the segment 2 will close the passage from chamber B. Asthe guest from chamber A passes out of the bath room, he must stepwithin the circle of the door segments and unlock segment 3 from guard12 and then rotate the segment 3 back to its normal position before hecan pass back to his room. Means are provided for preventing therotation of the partition 1 more than 180 degrees. An upstanding lug orstop 14 is rigidly mounted in the ioor and the partition carriesdepending lugs 15 and 16 which are adapted to engage the stop 14 so thatthe partition cannot be turned farther after one of these depending lugsstrikes the stop 14.

Means are provided for locking the door in the several differentpositions. Locks 17 and 18 are mounted on the sealing wall or guard 11and serve to lock the door or the segments 2 and 3 in their -normalpositions.

CJI

The edges of the segment 3 opposite the locks 17 and 18 have slots 19therein. The locks 17 and 13 have bolts 20 and 21 which are projectednormally in the slots 19 by springs 23. Guards or stops 24 are attachedto the segment 3 and form shoulders or locks Which prevent the guests inthe adjoining rooms from turning the door to effect an entrance from oneguest chamber to the other adjoining' guest chamber. A guest in chamberA has no Way of unlocking the lock 1T on the side of the chamber B andthe guest in chamber B has no Way of unlocking the lock 1S on the sideof the chamber A.

An unlocking device 25 is provided for each guest chamber and theunlocking devices carried by segment 3. Then the guest in chamber Asteps into the passage Way and 'thrusts the bolt 21 out of the segment 3With the unlocking device 25, he can turn the door in the direction topermit him to enter the bath room, but he cannot turn the door in theopposite direction on account of the bolt Q0 and the stop 24. The guestin chamber B can step in the passage Way and unlock or thrust the bolt2O out of segment and turn the door in the direction for him to enterthe bath room, but he cannot turn the door in the opposite direction onaccount of the bolt 21 and the stop 24. rThe bolt Q1 or the bolt 2O Willbe pressed far enough outwardly by the unlocking devices Q5 to permitthe stop or shoulder 24 to pass under the bolt when the door is to beused and it is apparent that either bolt will fall back into its normalposition immediately When the segment 3 assumes its normal position.rllhe metal forming the shoulder or step 24 may extend entirely back ofthe segment 3 to form a track for the bolts so that these bolts Will notpress against the surface of the segment The stops 24 may thus be onepiece of metal. As the guest from chamber A turns the door to enter thebath room, the edge of segment 3 soon passes the guard 12 and isautomatically engaged by a lock iti and the door is operated in the samemanner by the guest in chamber B, the edge ot the segment 3 passingbehind the guard 13. The unlocking devices 25 are again used forreleasing the door from either the lock 2G or lock 27. The unlockingdevices 25 are made double, or rather they are made so that two separateand distinct motions are necessary for exit and entrance purposes. rlheparticular construction is necessary to prevent designing parties fromnullifying the etllect of the locking bolts in the exterior guards orsealing Walls.

A casing 2S is bolted to segment 3. A handle Q9 which is in the form ofa double bellcrank lever is journaled in the casing 28 by means of afulcrum bolt 30. This handle is provided with arms 31 and integraltherewith. T he handle 2S) is used to depress two depressing levers 33and 34 which are pivotally connected to the sides of the casing 2S.rllhe lever 33 is pivotally connected With a bolt The levers 33 are torthe purpose of operating the locking bolts 20 andZl7 there being a lever33 for each unlocking device 25. The bolt 2O or the bolt 21 is operatedsimply by pulling the handle 29 in the proper direction which the guestdoes when he Wishes to operate the door. The lever 34 is pivotallyconnected to a bolt 3G. The bolt 36 is used for operating the lower oneof each ot' the lockingl bolts hereinafter described which are locatedin the guard Walls 12 and 13. Springs 37 hold the levers 33 and 34 intheir normal positions so that the bolts 35 stand at the entrance ot theholes through the segment 37 and as the locking bolt Q0 or 21 standsnormally projected into the segment 3 from the guard 11, the bolt forunlocking either one ot the bolts Q0 and Q1 is ready to take etteetthereon as soon as the handle Q9 is moved.

The locks 27 and 26 are similar and only one will be described. Eachlock has a casing 3S attached to the guard 'alls 12 and 13. TWO bolts 39and 40 are mounted in the casing 38 and both bolts are projectedinwardly by springs 41. There is no slot or hole in the segment 2 foreither one of the bolts 39 or 40. The edges ot the segment 2 oppositethe bolts and -l-O must be beveled as shown by dotted lines in Fig. 1 sothat these bolts will ride up on the outside ot segment 2 as one of theedges ot segment 2 comes against these bolts. The edges of segment 2must also be beveled at the same place so that the bolts Q0 and 21 Willride up on the outside of segment The function of the bolt 39 is toprevent the rotation of the door When no person is in the passage way,consequently a person on the outside of the passage Way cannot rotatethedoor farther than to make the stop 24 come against the bolt 3S). Buta person Within the passage Way can use the unlocking device 25 to shovethe bolt 3.) out of the Way of lock 24 and thus pass on to the bathroom. The function of the bolt 40 is to engage a slot 42 in the edge ofthe segment 3 to lock the door against movement While a person is in thebath room. The bolt 40 will ride up the bevel 43 on the edge of segment3 and drop in the slot 42. The slot 42 is long enough for the segment 3to rotate far enough to permit the party to enter the bath room. Theguest from chamber B could enter the bath room. The guest in chamber Amight turn the door slightly, but he could not turn the door tar enougheven to see into the bath room because the bolt 40 would catch againstthe shoulder 44 or shoulder 45 at the ends of slot 42. lVhen @sages theparty desires to leave the bath room, he can step within the doorpassage and by means of the unlocking device 25, with bolt 36, shove orthrust the bolt 40 out of slot 42. The function of bolt 36 can now beunderstood. The function of the double bell crank lever or handle 29will now be understood. @ne motion of this handle operates bolt inentering the bath room and the other motion of this handle operates bolt36 in leaving the bath room. The bolt 40 is provided with a handle 46for use in case of accident. If a party should become helpless while inthe bath room, a person in the chamber from which the party went coulduse the handle 46 to release the bolt 40 so that entrance could be hadto the bath room. The bolts 35 engage springs 4S to thrust bolts 20 and21 and 39 out of segment 3, and the bolts 36 engage springs 49 whichoperate in slot 42) to thrust bolts 40 out of the slots 19. Springs 48and 49 are attached to the segment 3. The springs 48 operate in slots19.

It may be desirable at times to make the bath room private to one of thetwo adjoining rooms. For this purpose a lug 47 is placed on the exteriorsurface of the segment 3. A lock 50 is mounted in the partition wall ofthe room on the side of chamber B whereby a key may be used to thrust alocking bolt 51 in the path of the lug 47 so A that a guest in chamber Acannot open a passage way to the bath room. In like manner a lock 53 maybe mounted in the partition wall on the side of chamber A whereby a Akeymay be used to thrust a locking bolt 54 in the path of lug 47 so that aguest in chamber B cannot open a passage way to the bath room. The lug47 must be in a different horizontal plane from the locking mechanismpreviously described.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent, is,--

1. In a rotating door for controlling the passages from two adjoining.rooms to a third room, a partition carrying segments of cylinders, aconcentric guard wall having passages for said adjoining rooms and apassage for said third room, depending lugs carried by said segments.and an upstanding stop, the rotation of said segments permitting passagefrom either one of said adjoining rooms to said third room but rotationof said segments far enough to permit passage from one of said adjoiningrooms to the other adjoining room being prevented by said lugs and stop.

2. -In a rotating door for controlling the passage from two adjoiningrooms to a third room, a partition carrying segments of cylinders, meanscoperating with said door to prevent passage from one of said adjoiningrooms to the other, and means carried by one of said segments forunlocking and moving the segments for opening the passage way from oneof said adjoining rooms to said third room and means for subsequentlylocking said segments to prevent passage from the other adjoining roomto said third room.

3. In a rotating door for controlling the passage from two adjoiningrooms to a third room, a partition carrying segments of cylinders, meanscoperating with said door to prevent passage from one of said adjoiningrooms to the other, one of said segments serving when a guest has leftone of said adjoining rooms and entered said third room to close thepassage from the other adjoining room, and means for locking said dooragainst movement while one party is in said third room.

4. In a rotating door for controlling the passage from two adjoiningrooms to a third room, a partition carrying segments of cylinders, meanscoperating with said door to prevent passage from one of said adjoiningrooms to the other, one of said segments serving when a guest has leftone of said adjoining rooms and entered said third room to close thepassage from the other adjoining room, means for locking the dooragainst movement while vthe party is in said third rooin, and the othersegment carrying unlocking devices.

5. In a rotating door for controlling the passage from two adjoiningrooms to a third room, a partition carrying segments of c vlinders, oneof said segments being a locking segment and the other being a sealingsegment or passage closing segment, a guard wall and locks therein forlocking said door in its normal position, and a guard wall for eachadjoining room and a lock therein whereby a guest from either adjoiningroom may enter said third room and lock door in position to close thepassage from the other adjoining room.

6. In a rotating door for controlling the passages from two adjoiningrooms to a third room, a partition `carrying segments of cylinders, oneof said segments being a locking member and the other segment being a.,sealing member or passage closing member, guard walls concentric withsaid members and locks mounted therein, said locks having bolts adaptedto lock said door in different positions, and unlocking devices carriedon the interior of said locking member for unlocking said door from saidguard walls.

7 In a rotating door for controlling the passages from two adjoiningrooms to a third room, a partition carrying a curved lockable member anda curved sealing mem- Y ent positions whereby a g'uest from eitheradjoining room may enter said third room and whereby the passage fromthe other adjoining room is simultaneously closed and locked closed.

S. In a rotating door for controlling the passages from two adjoiningrooms to a third room, a partition carrying a curved lockable member anda curved sealing member, curved guard walls cooperating with saidmembers, locks in said guard walls for automatically locking said doorwhen said door is rotated to diiierent positions, and unlocking devicescarried by said lockable member for releasing said member from saidlocks.

9. In a rotating door for controlling the passages from two adjoiningrooms to a third room, a partition carrying a curved lockable member anda curved sealing memb'er, curved guard walls cooperating with saidmembers, locks in said guard walls for automatically7 locking saidlockable member when said door is rotated to different positions, andunlocking devices carried by said lockable member whereby a guest fromeither adjoining room may enter said third room and lock the passagefrom the other adjoining room closed, said unlocking devices beinglocated on the interior of said lockable member whereby the guest isprevented from rotating said door far enough to open the passage to saidthird room without entering within the door passage.

l0. In a rotating door for controlling the passages from two adjoiningrooms to third room, a partition carrying a curved lockable member and acurved sealing meinber, curved guard walls cooperating with saidmembers, locks in said guard walls for automatically locking saidlockable member when said door is rotated to different positions, andunlocking devices carried by said lockable member for each of saidadjoining rooms, said unlocking devices including two bolts and a handleoperatively connected therewith, said handle operating one of said boltsfor a party entering said third room. and operating the other one ofsaid bolts for the party passing back to his room.

ll. In a rotating door for controlling the passage from two adjoiningrooms to a third room, a partition carrying segments ot' cylinders,guard walls cooperating with said segments, a lug carried on theexterior oit one of said segments, and a lock for each of said adjoiningrooms adapted to engage said lug whereby the passage from either one orboth of said adjoining rooms to said third room may be locked closed.

l2. In a. rotating door for controlling the passages from two adjoining'rooms to a third room, a partition carrying a curved lockable member anda curved sealing member, curved guard walls cooperating with saidmembers, locks in said guard walls for automatically locking saidlockable member when said door is rotated to different positions, andunlocking devices carried by said lockable member whereby a party fromeither adjoining room may enter said third room and lock the passa-ge tothe other adjoining room closed, said unlocking devices being located onthe interior of said lockable member whereby the party from eitheradjoining room is prevented from rotating said door far enough for saiddoor to be locked against passage to or from said third room withoutentering within the passage way of the door.

In testimony whereof, I set my hand in the presence of two witnesses,this 2nd day of January, 1909.

J NO. H. VAN ZANDT.

Vitn esses A. L. JACKSON, J. W. STITT.

